[bvw]

Well, it doesn't yet exclude the following possibilities --

1. that the tenant was muslim,
2. that the tenant wasn't muslim but had muslim "friends" who passed the credit card to him in payment for the house key,
3. that the tenant was part of a conspiracy and pocketed the credit card during the assassinations.

[Shermy]

Tenant could have been any religion as far as we know now. If Muslim, and he did it, it may have nothing to do with religion, or if it did it could be in the sectarian Northern Ireland type of animosities rather than some grand jihadist, Islamist, whatever inspiration.

Could just be nuts.